class Settings:
    """存储游戏《外星人入侵》中所有设置的类
    文件settings.py包含Settings类，这个类只包含方法__init__()，用于初始化控制游戏外观和飞船速度的属性。
    配置可以都写成一个类的属性
    """

    def __init__(self):
        """初始化游戏的设置。"""
        # 屏幕设置
        self.screen_width = 800
        self.screen_height = 600
        self.bg_color = (230, 230, 230)
        # 移动速度
        self.ship_speed = 1.5
        self.ship_limit = 3

        #子弹设置
        self.bullet_speed = 1.0
        self.bullet_width = 30
        self.bullet_height = 15
        self.bullet_color = (60,60,60)
        self.bullets_allowed = 3

        #外星人设置
        self.alien_speed = 1.0
        self.fleet_drop_speed =10
        self.fleet_direction = 1

        #加快游戏节奏的速度
        self.speedup_scale = 1.1
        self.score_scale = 1.5

        #子弹设置
        self.bullet_speed = 1.5
        self.bullet_width = 3
        self.high_score = 0

        self.initialize_dynamic_settings()


    def initialize_dynamic_settings(self):
        self.ship_speed = 1.5
        self.bullet_speed = 3.0
        self.alien_speed =1.0

        #为1表示向右，-1表示向左
        self.fleet_direction =1

        self.alien_points = 50
        self.high_score = 0

    def increase_speed(self):
        """提高速度设置和外星人分数"""
        self.ship_speed *=self.speedup_scale
        self.bullet_speed *=self.speedup_scale
        self.alien_speed *=self.speedup_scale

        self.alien_points = int(self.alien_points*self.score_scale)
        print(self.alien_points)


